Laxey company MMD undertook work
The water wheel at Groudle Glen, first constructed in the 1890s by Richard Maltby Broadbent, has been rebuilt.
It was officially opened His Excellency the Lieutenant Governor Sir Richard Gozney, who cut the ribbon at a ceremony with invited guests.
The work was done by MMD (Mining Machinery Developments) based in Laxey.
Peter Kelly from the Isle of Man Victorian Society praised the company's efforts:
Cleanliness and wellbeing at NSC being taken 'seriously'
'Thick black mould' social media claims disputed by DESC
Firefighters attend late night gorse fire at the Point of Ayre
People warned of dangers as we enter warmer season
Government appoints new Chief People Officer
Grace Eames will take charge of Office of Human Resources next month
Vehicle rolls 'several times' during crash in the south
Emergency services called out to single vehicle incident on Billown Circuit.